MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Data encryption translates data into another form, or code, so that only people with access to a secret key (formally called a decryption key) or password can read it. Encrypted data is commonly referred to as ciphertext, while unencrypted data is called plaintext.

Detailed explanation-2: -Encryption keeps data secured on stolen or lost devices. Hackers cannot gain access to data if they don’t have the password (encryption key). Ensures compliance: Encryption helps businesses stay compliant with regulatory requirements and standards.

Detailed explanation-3: -In simple terms, encryption is the process through which data is encoded so that it remains hidden from or inaccessible to unauthorized users. It helps protect private information, sensitive data, and can enhance the security of communication between client apps and servers.

Detailed explanation-4: -Encrypting personal data whilst it is being transferred from one device to another (eg across the internet or over wired or wireless connections) provides effective protection against interception of the communication by a third party whilst the data is in transfer.